java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:30:39,666 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:30:39,670 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:30:39,690 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:30:39,691 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:30:39,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:30:39,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:30:39,697 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:30:39,701 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:30:39,702 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:30:39,703 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:30:39,703 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:30:39,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:30:39,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:30:39,713 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:30:39,714 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:30:39,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:30:39,723 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:30:39,726 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:30:39,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:30:39,733 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:30:39,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:30:39,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 23:30:39,739 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 23:30:39,739 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 23:30:39,740 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 23:30:39,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 23:30:39,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 23:30:39,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 23:30:39,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 23:30:39,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 23:30:39,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 23:30:39,750 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-23 23:30:39,774 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:30:39,774 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:30:39,775 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:30:39,776 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:30:39,779 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:30:39,779 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:30:39,780 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:30:39,780 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:30:39,780 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:30:39,780 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:30:39,780 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:30:39,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:30:39,781 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:30:39,781 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:30:39,782 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:30:39,783 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:30:39,783 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:30:39,783 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:30:39,783 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:30:39,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:30:39,785 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:30:39,785 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:30:39,785 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:30:39,785 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:30:39,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:30:39,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:30:39,786 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:30:39,786 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:30:39,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:30:39,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:30:39,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:30:39,885 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:30:39,886 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:30:39,887 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-07-23 23:30:40,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110e73624/e3adfd387f53443fbef8a0f12bc3c198/FLAGb7c242fd3 [2018-07-23 23:30:40,399 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:30:40,400 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-07-23 23:30:40,408 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110e73624/e3adfd387f53443fbef8a0f12bc3c198/FLAGb7c242fd3 [2018-07-23 23:30:40,425 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/110e73624/e3adfd387f53443fbef8a0f12bc3c198 [2018-07-23 23:30:40,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:30:40,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:30:40,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:30:40,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:30:40,446 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:30:40,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a20aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40, skipping insertion in model container [2018-07-23 23:30:40,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,672 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:30:40,738 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:30:40,755 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:30:40,782 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:30:40,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40 WrapperNode [2018-07-23 23:30:40,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:30:40,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:30:40,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:30:40,806 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:30:40,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:30:40,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:30:40,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:30:40,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:30:40,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... [2018-07-23 23:30:40,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:30:40,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:30:40,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:30:40,909 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:30:40,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:30:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:30:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:30:41,518 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:30:41,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:30:41 BoogieIcfgContainer [2018-07-23 23:30:41,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:30:41,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:30:41,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:30:41,523 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:30:41,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:30:40" (1/3) ... [2018-07-23 23:30:41,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b584d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:30:41, skipping insertion in model container [2018-07-23 23:30:41,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:30:40" (2/3) ... [2018-07-23 23:30:41,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b584d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:30:41, skipping insertion in model container [2018-07-23 23:30:41,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:30:41" (3/3) ... [2018-07-23 23:30:41,527 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal_true-unreach-call.i [2018-07-23 23:30:41,537 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:30:41,545 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:30:41,594 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:30:41,595 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:30:41,595 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:30:41,596 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:30:41,596 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:30:41,596 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:30:41,596 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:30:41,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:30:41,596 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:30:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-07-23 23:30:41,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 23:30:41,620 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:41,621 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:41,621 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:41,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1505418511, now seen corresponding path program 1 times [2018-07-23 23:30:41,629 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:41,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:41,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:41,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:41,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:30:41,771 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:30:41,771 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:30:41,775 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:30:41,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:30:41,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:30:41,791 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-07-23 23:30:41,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:41,810 INFO L93 Difference]: Finished difference Result 59 states and 87 transitions. [2018-07-23 23:30:41,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:30:41,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-07-23 23:30:41,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:41,822 INFO L225 Difference]: With dead ends: 59 [2018-07-23 23:30:41,823 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 23:30:41,827 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:30:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 23:30:41,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 23:30:41,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 23:30:41,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2018-07-23 23:30:41,867 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 12 [2018-07-23 23:30:41,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:41,868 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-07-23 23:30:41,868 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:30:41,868 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2018-07-23 23:30:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-23 23:30:41,869 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:41,869 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:41,870 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:41,870 INFO L82 PathProgramCache]: Analyzing trace with hash -923043981, now seen corresponding path program 1 times [2018-07-23 23:30:41,870 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:41,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:41,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:41,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:41,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:30:41,966 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:30:41,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:30:41,969 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:30:41,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:30:41,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:30:41,971 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 3 states. [2018-07-23 23:30:42,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:42,142 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2018-07-23 23:30:42,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:30:42,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-07-23 23:30:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:42,144 INFO L225 Difference]: With dead ends: 73 [2018-07-23 23:30:42,144 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 23:30:42,146 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:30:42,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 23:30:42,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 30. [2018-07-23 23:30:42,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 23:30:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2018-07-23 23:30:42,152 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2018-07-23 23:30:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:42,153 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2018-07-23 23:30:42,153 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:30:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2018-07-23 23:30:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 23:30:42,154 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:42,154 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:42,154 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1522827637, now seen corresponding path program 1 times [2018-07-23 23:30:42,155 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:42,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:42,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:42,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:42,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:30:42,257 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:42,257 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:42,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:42,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 23:30:42,635 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:30:42,635 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2018-07-23 23:30:42,636 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 23:30:42,636 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 23:30:42,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:30:42,637 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 7 states. [2018-07-23 23:30:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:43,444 INFO L93 Difference]: Finished difference Result 170 states and 217 transitions. [2018-07-23 23:30:43,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 23:30:43,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-07-23 23:30:43,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:43,451 INFO L225 Difference]: With dead ends: 170 [2018-07-23 23:30:43,451 INFO L226 Difference]: Without dead ends: 141 [2018-07-23 23:30:43,455 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:30:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-07-23 23:30:43,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 48. [2018-07-23 23:30:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 23:30:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2018-07-23 23:30:43,481 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 19 [2018-07-23 23:30:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:43,482 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2018-07-23 23:30:43,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 23:30:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2018-07-23 23:30:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 23:30:43,484 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:43,485 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:43,485 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:43,485 INFO L82 PathProgramCache]: Analyzing trace with hash -703207963, now seen corresponding path program 1 times [2018-07-23 23:30:43,486 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:43,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:43,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:43,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:43,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 23:30:43,792 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:43,792 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:43,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:43,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-23 23:30:43,965 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:30:43,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2018-07-23 23:30:43,966 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 23:30:43,967 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 23:30:43,967 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-23 23:30:43,967 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand 8 states. [2018-07-23 23:30:44,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:44,815 INFO L93 Difference]: Finished difference Result 197 states and 252 transitions. [2018-07-23 23:30:44,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 23:30:44,815 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-07-23 23:30:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:44,819 INFO L225 Difference]: With dead ends: 197 [2018-07-23 23:30:44,819 INFO L226 Difference]: Without dead ends: 153 [2018-07-23 23:30:44,820 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:30:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-23 23:30:44,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 53. [2018-07-23 23:30:44,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-23 23:30:44,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2018-07-23 23:30:44,832 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 31 [2018-07-23 23:30:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:44,832 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2018-07-23 23:30:44,832 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 23:30:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2018-07-23 23:30:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 23:30:44,834 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:44,834 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:44,834 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash 904617097, now seen corresponding path program 1 times [2018-07-23 23:30:44,835 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:44,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:44,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:44,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:44,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-23 23:30:44,956 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:44,956 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:44,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:45,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-23 23:30:45,099 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:45,099 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-07-23 23:30:45,100 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:30:45,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:30:45,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:30:45,101 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand 9 states. [2018-07-23 23:30:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:45,744 INFO L93 Difference]: Finished difference Result 341 states and 432 transitions. [2018-07-23 23:30:45,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 23:30:45,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-07-23 23:30:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:45,747 INFO L225 Difference]: With dead ends: 341 [2018-07-23 23:30:45,747 INFO L226 Difference]: Without dead ends: 301 [2018-07-23 23:30:45,748 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-07-23 23:30:45,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-07-23 23:30:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 75. [2018-07-23 23:30:45,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 23:30:45,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2018-07-23 23:30:45,769 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 36 [2018-07-23 23:30:45,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:45,770 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2018-07-23 23:30:45,770 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:30:45,770 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2018-07-23 23:30:45,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 23:30:45,771 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:45,772 INFO L353 BasicCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:45,772 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:45,772 INFO L82 PathProgramCache]: Analyzing trace with hash 524528360, now seen corresponding path program 1 times [2018-07-23 23:30:45,772 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:45,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:45,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:45,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:45,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:45,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-23 23:30:45,934 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:45,934 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:45,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:45,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-07-23 23:30:46,069 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:46,070 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2018-07-23 23:30:46,070 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 23:30:46,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 23:30:46,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:30:46,071 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand 10 states. [2018-07-23 23:30:46,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:46,770 INFO L93 Difference]: Finished difference Result 301 states and 385 transitions. [2018-07-23 23:30:46,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 23:30:46,770 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2018-07-23 23:30:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:46,772 INFO L225 Difference]: With dead ends: 301 [2018-07-23 23:30:46,772 INFO L226 Difference]: Without dead ends: 242 [2018-07-23 23:30:46,773 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:30:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-07-23 23:30:46,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 80. [2018-07-23 23:30:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 23:30:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 97 transitions. [2018-07-23 23:30:46,788 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 97 transitions. Word has length 39 [2018-07-23 23:30:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:46,789 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 97 transitions. [2018-07-23 23:30:46,789 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 23:30:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2018-07-23 23:30:46,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 23:30:46,790 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:46,791 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:46,791 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1650501457, now seen corresponding path program 2 times [2018-07-23 23:30:46,791 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:46,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:46,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:46,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:46,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-23 23:30:47,014 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:47,014 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:47,037 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:30:47,078 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:30:47,079 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:30:47,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-07-23 23:30:47,250 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:47,250 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8] total 10 [2018-07-23 23:30:47,250 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 23:30:47,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 23:30:47,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:30:47,252 INFO L87 Difference]: Start difference. First operand 80 states and 97 transitions. Second operand 10 states. [2018-07-23 23:30:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:48,715 INFO L93 Difference]: Finished difference Result 349 states and 472 transitions. [2018-07-23 23:30:48,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 23:30:48,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2018-07-23 23:30:48,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:48,717 INFO L225 Difference]: With dead ends: 349 [2018-07-23 23:30:48,718 INFO L226 Difference]: Without dead ends: 307 [2018-07-23 23:30:48,719 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2018-07-23 23:30:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-07-23 23:30:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 140. [2018-07-23 23:30:48,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 23:30:48,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 168 transitions. [2018-07-23 23:30:48,751 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 168 transitions. Word has length 44 [2018-07-23 23:30:48,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:48,752 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 168 transitions. [2018-07-23 23:30:48,752 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 23:30:48,752 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 168 transitions. [2018-07-23 23:30:48,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 23:30:48,755 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:48,756 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:48,756 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:48,756 INFO L82 PathProgramCache]: Analyzing trace with hash 797921636, now seen corresponding path program 1 times [2018-07-23 23:30:48,756 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:48,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:48,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:48,758 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:30:48,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-07-23 23:30:49,384 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:49,385 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:49,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:49,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-23 23:30:49,602 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:49,603 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 13 [2018-07-23 23:30:49,603 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 23:30:49,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 23:30:49,603 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-07-23 23:30:49,604 INFO L87 Difference]: Start difference. First operand 140 states and 168 transitions. Second operand 13 states. [2018-07-23 23:30:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:51,905 INFO L93 Difference]: Finished difference Result 740 states and 905 transitions. [2018-07-23 23:30:51,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 23:30:51,909 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2018-07-23 23:30:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:51,913 INFO L225 Difference]: With dead ends: 740 [2018-07-23 23:30:51,913 INFO L226 Difference]: Without dead ends: 730 [2018-07-23 23:30:51,914 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 23:30:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2018-07-23 23:30:51,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 240. [2018-07-23 23:30:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-07-23 23:30:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 294 transitions. [2018-07-23 23:30:51,977 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 294 transitions. Word has length 59 [2018-07-23 23:30:51,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:51,978 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 294 transitions. [2018-07-23 23:30:51,978 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 23:30:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 294 transitions. [2018-07-23 23:30:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 23:30:51,988 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:51,989 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:51,989 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:51,989 INFO L82 PathProgramCache]: Analyzing trace with hash 404894626, now seen corresponding path program 1 times [2018-07-23 23:30:51,989 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:51,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:51,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:51,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:51,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-07-23 23:30:52,530 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:52,530 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:52,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:52,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-07-23 23:30:53,254 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:53,254 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2018-07-23 23:30:53,255 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 23:30:53,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 23:30:53,256 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:30:53,256 INFO L87 Difference]: Start difference. First operand 240 states and 294 transitions. Second operand 14 states. [2018-07-23 23:30:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:55,197 INFO L93 Difference]: Finished difference Result 788 states and 986 transitions. [2018-07-23 23:30:55,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 23:30:55,200 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2018-07-23 23:30:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:55,205 INFO L225 Difference]: With dead ends: 788 [2018-07-23 23:30:55,205 INFO L226 Difference]: Without dead ends: 641 [2018-07-23 23:30:55,207 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2018-07-23 23:30:55,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2018-07-23 23:30:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 415. [2018-07-23 23:30:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-07-23 23:30:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 491 transitions. [2018-07-23 23:30:55,261 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 491 transitions. Word has length 59 [2018-07-23 23:30:55,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:55,262 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 491 transitions. [2018-07-23 23:30:55,262 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 23:30:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 491 transitions. [2018-07-23 23:30:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 23:30:55,264 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:55,264 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:55,265 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:55,265 INFO L82 PathProgramCache]: Analyzing trace with hash -544183010, now seen corresponding path program 1 times [2018-07-23 23:30:55,265 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:55,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:55,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:55,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:55,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:55,639 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 6 [2018-07-23 23:30:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-07-23 23:30:55,803 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:55,803 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:55,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:55,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:55,934 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-07-23 23:30:55,955 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:55,955 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-07-23 23:30:55,956 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 23:30:55,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 23:30:55,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:30:55,956 INFO L87 Difference]: Start difference. First operand 415 states and 491 transitions. Second operand 7 states. [2018-07-23 23:30:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:56,501 INFO L93 Difference]: Finished difference Result 824 states and 1000 transitions. [2018-07-23 23:30:56,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:30:56,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2018-07-23 23:30:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:56,506 INFO L225 Difference]: With dead ends: 824 [2018-07-23 23:30:56,506 INFO L226 Difference]: Without dead ends: 722 [2018-07-23 23:30:56,507 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 9 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:30:56,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2018-07-23 23:30:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 523. [2018-07-23 23:30:56,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-07-23 23:30:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 617 transitions. [2018-07-23 23:30:56,580 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 617 transitions. Word has length 59 [2018-07-23 23:30:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:56,580 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 617 transitions. [2018-07-23 23:30:56,580 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 23:30:56,580 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 617 transitions. [2018-07-23 23:30:56,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 23:30:56,587 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:56,587 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:56,587 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:56,588 INFO L82 PathProgramCache]: Analyzing trace with hash 489566494, now seen corresponding path program 1 times [2018-07-23 23:30:56,588 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:56,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:56,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:56,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:56,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:56,936 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 6 [2018-07-23 23:30:57,443 WARN L169 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 20 [2018-07-23 23:30:57,639 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 15 [2018-07-23 23:30:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-07-23 23:30:57,887 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:57,887 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:57,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:57,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-07-23 23:30:57,979 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:57,980 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-07-23 23:30:57,980 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 23:30:57,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 23:30:57,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:30:57,981 INFO L87 Difference]: Start difference. First operand 523 states and 617 transitions. Second operand 7 states. [2018-07-23 23:30:58,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:58,279 INFO L93 Difference]: Finished difference Result 812 states and 977 transitions. [2018-07-23 23:30:58,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:30:58,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2018-07-23 23:30:58,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:58,283 INFO L225 Difference]: With dead ends: 812 [2018-07-23 23:30:58,284 INFO L226 Difference]: Without dead ends: 727 [2018-07-23 23:30:58,285 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 SyntacticMatches, 8 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:30:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2018-07-23 23:30:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 549. [2018-07-23 23:30:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2018-07-23 23:30:58,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 640 transitions. [2018-07-23 23:30:58,355 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 640 transitions. Word has length 59 [2018-07-23 23:30:58,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:58,355 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 640 transitions. [2018-07-23 23:30:58,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 23:30:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 640 transitions. [2018-07-23 23:30:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 23:30:58,357 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:58,357 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:58,357 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:58,358 INFO L82 PathProgramCache]: Analyzing trace with hash -128523746, now seen corresponding path program 2 times [2018-07-23 23:30:58,358 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:58,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:58,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:58,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:58,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-07-23 23:30:58,917 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:58,917 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:58,925 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:30:58,945 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:30:58,946 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:30:58,948 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:30:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-07-23 23:30:59,106 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:30:59,106 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 12 [2018-07-23 23:30:59,107 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 23:30:59,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 23:30:59,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-07-23 23:30:59,107 INFO L87 Difference]: Start difference. First operand 549 states and 640 transitions. Second operand 12 states. [2018-07-23 23:30:59,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:30:59,568 INFO L93 Difference]: Finished difference Result 832 states and 998 transitions. [2018-07-23 23:30:59,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 23:30:59,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 59 [2018-07-23 23:30:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:30:59,574 INFO L225 Difference]: With dead ends: 832 [2018-07-23 23:30:59,574 INFO L226 Difference]: Without dead ends: 763 [2018-07-23 23:30:59,575 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 56 SyntacticMatches, 8 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-07-23 23:30:59,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2018-07-23 23:30:59,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 548. [2018-07-23 23:30:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2018-07-23 23:30:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 639 transitions. [2018-07-23 23:30:59,643 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 639 transitions. Word has length 59 [2018-07-23 23:30:59,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:30:59,643 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 639 transitions. [2018-07-23 23:30:59,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 23:30:59,643 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 639 transitions. [2018-07-23 23:30:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 23:30:59,645 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:30:59,645 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:30:59,645 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:30:59,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1450614601, now seen corresponding path program 1 times [2018-07-23 23:30:59,645 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:30:59,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:30:59,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:59,647 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:30:59,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:30:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-23 23:30:59,819 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:30:59,819 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:30:59,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:30:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:30:59,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-07-23 23:31:00,031 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:00,032 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2018-07-23 23:31:00,032 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 23:31:00,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 23:31:00,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:31:00,033 INFO L87 Difference]: Start difference. First operand 548 states and 639 transitions. Second operand 10 states. [2018-07-23 23:31:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:00,879 INFO L93 Difference]: Finished difference Result 2427 states and 2925 transitions. [2018-07-23 23:31:00,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 23:31:00,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2018-07-23 23:31:00,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:00,889 INFO L225 Difference]: With dead ends: 2427 [2018-07-23 23:31:00,890 INFO L226 Difference]: Without dead ends: 2237 [2018-07-23 23:31:00,891 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:31:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2018-07-23 23:31:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 636. [2018-07-23 23:31:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2018-07-23 23:31:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 751 transitions. [2018-07-23 23:31:00,994 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 751 transitions. Word has length 61 [2018-07-23 23:31:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:00,994 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 751 transitions. [2018-07-23 23:31:00,994 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 23:31:00,995 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 751 transitions. [2018-07-23 23:31:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 23:31:00,996 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:00,996 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:00,997 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:00,997 INFO L82 PathProgramCache]: Analyzing trace with hash 867591081, now seen corresponding path program 1 times [2018-07-23 23:31:00,997 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:00,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:00,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:00,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:31:00,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-07-23 23:31:01,353 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:01,353 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:01,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:31:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:01,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 41 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-23 23:31:01,482 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:01,482 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 7 [2018-07-23 23:31:01,483 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 23:31:01,483 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 23:31:01,483 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-23 23:31:01,483 INFO L87 Difference]: Start difference. First operand 636 states and 751 transitions. Second operand 7 states. [2018-07-23 23:31:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:01,884 INFO L93 Difference]: Finished difference Result 1174 states and 1385 transitions. [2018-07-23 23:31:01,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 23:31:01,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 63 [2018-07-23 23:31:01,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:01,887 INFO L225 Difference]: With dead ends: 1174 [2018-07-23 23:31:01,887 INFO L226 Difference]: Without dead ends: 619 [2018-07-23 23:31:01,889 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-07-23 23:31:01,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2018-07-23 23:31:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 446. [2018-07-23 23:31:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-07-23 23:31:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 500 transitions. [2018-07-23 23:31:01,965 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 500 transitions. Word has length 63 [2018-07-23 23:31:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:01,965 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 500 transitions. [2018-07-23 23:31:01,965 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 23:31:01,965 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 500 transitions. [2018-07-23 23:31:01,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 23:31:01,966 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:01,967 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:01,967 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:01,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1019806083, now seen corresponding path program 2 times [2018-07-23 23:31:01,967 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:01,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:01,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:01,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:31:01,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-23 23:31:02,352 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:02,353 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:02,360 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:31:02,384 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:31:02,384 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:02,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-23 23:31:02,789 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:02,790 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 15 [2018-07-23 23:31:02,790 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 23:31:02,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 23:31:02,790 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-07-23 23:31:02,791 INFO L87 Difference]: Start difference. First operand 446 states and 500 transitions. Second operand 15 states. [2018-07-23 23:31:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:06,500 INFO L93 Difference]: Finished difference Result 3422 states and 3856 transitions. [2018-07-23 23:31:06,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 23:31:06,501 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 65 [2018-07-23 23:31:06,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:06,513 INFO L225 Difference]: With dead ends: 3422 [2018-07-23 23:31:06,513 INFO L226 Difference]: Without dead ends: 3297 [2018-07-23 23:31:06,516 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2018-07-23 23:31:06,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2018-07-23 23:31:06,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 849. [2018-07-23 23:31:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 849 states. [2018-07-23 23:31:06,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 951 transitions. [2018-07-23 23:31:06,750 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 951 transitions. Word has length 65 [2018-07-23 23:31:06,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:06,750 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 951 transitions. [2018-07-23 23:31:06,751 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 23:31:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 951 transitions. [2018-07-23 23:31:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 23:31:06,753 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:06,753 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:06,753 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:06,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1905520351, now seen corresponding path program 2 times [2018-07-23 23:31:06,753 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:06,754 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:06,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:06,754 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:06,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:07,343 WARN L169 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-07-23 23:31:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 4 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-07-23 23:31:07,883 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:07,883 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:07,904 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:31:07,951 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:31:07,952 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:07,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 28 proven. 33 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-07-23 23:31:09,270 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:09,270 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 15 [2018-07-23 23:31:09,271 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 23:31:09,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 23:31:09,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-07-23 23:31:09,271 INFO L87 Difference]: Start difference. First operand 849 states and 951 transitions. Second operand 15 states. [2018-07-23 23:31:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:09,988 INFO L93 Difference]: Finished difference Result 965 states and 1071 transitions. [2018-07-23 23:31:09,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 23:31:09,993 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 72 [2018-07-23 23:31:09,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:09,997 INFO L225 Difference]: With dead ends: 965 [2018-07-23 23:31:09,997 INFO L226 Difference]: Without dead ends: 857 [2018-07-23 23:31:09,998 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2018-07-23 23:31:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2018-07-23 23:31:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 817. [2018-07-23 23:31:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2018-07-23 23:31:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 916 transitions. [2018-07-23 23:31:10,225 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 916 transitions. Word has length 72 [2018-07-23 23:31:10,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:10,225 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 916 transitions. [2018-07-23 23:31:10,225 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 23:31:10,225 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 916 transitions. [2018-07-23 23:31:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-07-23 23:31:10,227 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:10,228 INFO L353 BasicCegarLoop]: trace histogram [9, 7, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:10,228 INFO L414 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:10,228 INFO L82 PathProgramCache]: Analyzing trace with hash -895721298, now seen corresponding path program 3 times [2018-07-23 23:31:10,228 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:10,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:10,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:10,229 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:10,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2018-07-23 23:31:10,465 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:10,465 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:10,473 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 23:31:10,501 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-07-23 23:31:10,501 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:10,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-07-23 23:31:10,617 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:31:10,617 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2018-07-23 23:31:10,618 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 23:31:10,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 23:31:10,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-07-23 23:31:10,618 INFO L87 Difference]: Start difference. First operand 817 states and 916 transitions. Second operand 15 states. [2018-07-23 23:31:12,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:12,246 INFO L93 Difference]: Finished difference Result 3226 states and 3607 transitions. [2018-07-23 23:31:12,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 23:31:12,247 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 82 [2018-07-23 23:31:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:12,257 INFO L225 Difference]: With dead ends: 3226 [2018-07-23 23:31:12,258 INFO L226 Difference]: Without dead ends: 3139 [2018-07-23 23:31:12,259 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2018-07-23 23:31:12,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2018-07-23 23:31:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 807. [2018-07-23 23:31:12,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2018-07-23 23:31:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 903 transitions. [2018-07-23 23:31:12,412 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 903 transitions. Word has length 82 [2018-07-23 23:31:12,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:12,413 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 903 transitions. [2018-07-23 23:31:12,413 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 23:31:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 903 transitions. [2018-07-23 23:31:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 23:31:12,415 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:12,415 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:12,415 INFO L414 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:12,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1295211527, now seen corresponding path program 3 times [2018-07-23 23:31:12,416 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:12,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:12,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:12,417 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:12,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:13,017 WARN L169 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2018-07-23 23:31:13,634 WARN L169 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 22 [2018-07-23 23:31:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 28 proven. 49 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-23 23:31:13,799 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:13,799 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:13,807 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 23:31:13,843 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-07-23 23:31:13,844 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:13,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 28 proven. 66 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-23 23:31:13,996 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:13,996 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2018-07-23 23:31:13,996 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 23:31:13,996 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 23:31:13,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:31:13,997 INFO L87 Difference]: Start difference. First operand 807 states and 903 transitions. Second operand 14 states. [2018-07-23 23:31:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:14,582 INFO L93 Difference]: Finished difference Result 1641 states and 1828 transitions. [2018-07-23 23:31:14,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 23:31:14,582 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2018-07-23 23:31:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:14,587 INFO L225 Difference]: With dead ends: 1641 [2018-07-23 23:31:14,587 INFO L226 Difference]: Without dead ends: 1543 [2018-07-23 23:31:14,588 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:31:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2018-07-23 23:31:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1227. [2018-07-23 23:31:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-07-23 23:31:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1374 transitions. [2018-07-23 23:31:14,825 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1374 transitions. Word has length 87 [2018-07-23 23:31:14,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:14,825 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1374 transitions. [2018-07-23 23:31:14,825 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 23:31:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1374 transitions. [2018-07-23 23:31:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 23:31:14,828 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:14,828 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:14,828 INFO L414 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:14,829 INFO L82 PathProgramCache]: Analyzing trace with hash -2051781881, now seen corresponding path program 4 times [2018-07-23 23:31:14,829 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:14,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:14,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:14,830 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:14,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:15,338 WARN L169 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 11 [2018-07-23 23:31:15,790 WARN L169 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 11 [2018-07-23 23:31:16,530 WARN L169 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 18 [2018-07-23 23:31:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 18 proven. 64 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-07-23 23:31:16,924 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:16,924 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:16,931 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-23 23:31:16,959 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-23 23:31:16,959 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:16,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 18 proven. 84 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-07-23 23:31:17,168 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:17,168 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 20 [2018-07-23 23:31:17,169 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 23:31:17,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 23:31:17,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2018-07-23 23:31:17,169 INFO L87 Difference]: Start difference. First operand 1227 states and 1374 transitions. Second operand 20 states. [2018-07-23 23:31:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:18,067 INFO L93 Difference]: Finished difference Result 2030 states and 2262 transitions. [2018-07-23 23:31:18,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 23:31:18,068 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 87 [2018-07-23 23:31:18,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:18,073 INFO L225 Difference]: With dead ends: 2030 [2018-07-23 23:31:18,073 INFO L226 Difference]: Without dead ends: 1924 [2018-07-23 23:31:18,074 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 80 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-07-23 23:31:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2018-07-23 23:31:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1601. [2018-07-23 23:31:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1601 states. [2018-07-23 23:31:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 1796 transitions. [2018-07-23 23:31:18,369 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 1796 transitions. Word has length 87 [2018-07-23 23:31:18,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:18,370 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 1796 transitions. [2018-07-23 23:31:18,370 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 23:31:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 1796 transitions. [2018-07-23 23:31:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 23:31:18,373 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:18,373 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:18,373 INFO L414 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:18,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1408935499, now seen corresponding path program 5 times [2018-07-23 23:31:18,374 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:18,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:18,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:18,374 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:18,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:18,974 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2018-07-23 23:31:19,417 WARN L169 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 23 [2018-07-23 23:31:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 28 proven. 49 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-23 23:31:19,512 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:19,512 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:19,523 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-07-23 23:31:19,774 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-07-23 23:31:19,775 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:19,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 28 proven. 64 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-07-23 23:31:20,342 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:20,343 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 21 [2018-07-23 23:31:20,343 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 23:31:20,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 23:31:20,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-07-23 23:31:20,344 INFO L87 Difference]: Start difference. First operand 1601 states and 1796 transitions. Second operand 21 states. [2018-07-23 23:31:21,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:21,561 INFO L93 Difference]: Finished difference Result 2296 states and 2534 transitions. [2018-07-23 23:31:21,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 23:31:21,561 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 87 [2018-07-23 23:31:21,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:21,567 INFO L225 Difference]: With dead ends: 2296 [2018-07-23 23:31:21,568 INFO L226 Difference]: Without dead ends: 2221 [2018-07-23 23:31:21,568 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 70 SyntacticMatches, 14 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2018-07-23 23:31:21,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-07-23 23:31:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 1726. [2018-07-23 23:31:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2018-07-23 23:31:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 1918 transitions. [2018-07-23 23:31:21,913 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 1918 transitions. Word has length 87 [2018-07-23 23:31:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 1918 transitions. [2018-07-23 23:31:21,913 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 23:31:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 1918 transitions. [2018-07-23 23:31:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 23:31:21,917 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:21,918 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:21,918 INFO L414 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:21,918 INFO L82 PathProgramCache]: Analyzing trace with hash 790845259, now seen corresponding path program 6 times [2018-07-23 23:31:21,918 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:21,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:21,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:21,919 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:21,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:22,399 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 11 [2018-07-23 23:31:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 18 proven. 64 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-07-23 23:31:22,977 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:22,977 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:22,984 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-07-23 23:31:23,052 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2018-07-23 23:31:23,052 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:23,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:24,702 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:31:24,704 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:31:24,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-07-23 23:31:24,712 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 23:31:24,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:31:24,735 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:12 [2018-07-23 23:31:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 7 proven. 75 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-07-23 23:31:24,823 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:24,824 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 22 [2018-07-23 23:31:24,824 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 23:31:24,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 23:31:24,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-07-23 23:31:24,825 INFO L87 Difference]: Start difference. First operand 1726 states and 1918 transitions. Second operand 22 states. [2018-07-23 23:31:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:27,681 INFO L93 Difference]: Finished difference Result 1993 states and 2204 transitions. [2018-07-23 23:31:27,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 23:31:27,682 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 87 [2018-07-23 23:31:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:27,689 INFO L225 Difference]: With dead ends: 1993 [2018-07-23 23:31:27,689 INFO L226 Difference]: Without dead ends: 1930 [2018-07-23 23:31:27,690 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 78 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=234, Invalid=1248, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 23:31:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2018-07-23 23:31:28,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1687. [2018-07-23 23:31:28,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2018-07-23 23:31:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 1876 transitions. [2018-07-23 23:31:28,039 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 1876 transitions. Word has length 87 [2018-07-23 23:31:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:28,040 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 1876 transitions. [2018-07-23 23:31:28,040 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 23:31:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 1876 transitions. [2018-07-23 23:31:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 23:31:28,042 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:28,043 INFO L353 BasicCegarLoop]: trace histogram [9, 7, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:28,043 INFO L414 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:28,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1710888062, now seen corresponding path program 7 times [2018-07-23 23:31:28,043 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:28,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:28,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:28,044 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:28,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-07-23 23:31:28,636 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:28,636 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:28,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:31:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:28,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-07-23 23:31:29,103 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:29,103 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 20 [2018-07-23 23:31:29,103 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 23:31:29,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 23:31:29,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2018-07-23 23:31:29,104 INFO L87 Difference]: Start difference. First operand 1687 states and 1876 transitions. Second operand 20 states. [2018-07-23 23:31:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:35,680 INFO L93 Difference]: Finished difference Result 8545 states and 9525 transitions. [2018-07-23 23:31:35,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 23:31:35,683 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 95 [2018-07-23 23:31:35,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:35,707 INFO L225 Difference]: With dead ends: 8545 [2018-07-23 23:31:35,708 INFO L226 Difference]: Without dead ends: 7589 [2018-07-23 23:31:35,711 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=175, Invalid=1465, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 23:31:35,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7589 states. [2018-07-23 23:31:36,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7589 to 2242. [2018-07-23 23:31:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2242 states. [2018-07-23 23:31:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 2466 transitions. [2018-07-23 23:31:36,288 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 2466 transitions. Word has length 95 [2018-07-23 23:31:36,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:36,288 INFO L471 AbstractCegarLoop]: Abstraction has 2242 states and 2466 transitions. [2018-07-23 23:31:36,288 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 23:31:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 2466 transitions. [2018-07-23 23:31:36,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-23 23:31:36,291 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:36,291 INFO L353 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:36,292 INFO L414 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:36,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2139112086, now seen corresponding path program 8 times [2018-07-23 23:31:36,292 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:36,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:36,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:36,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:31:36,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:36,967 WARN L169 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 15 [2018-07-23 23:31:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 60 proven. 39 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-23 23:31:37,037 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:37,037 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:37,044 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:31:37,079 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:31:37,079 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:37,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 49 proven. 97 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-07-23 23:31:37,366 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:37,366 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 19 [2018-07-23 23:31:37,367 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 23:31:37,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 23:31:37,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:31:37,367 INFO L87 Difference]: Start difference. First operand 2242 states and 2466 transitions. Second operand 19 states. [2018-07-23 23:31:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:38,946 INFO L93 Difference]: Finished difference Result 2512 states and 2740 transitions. [2018-07-23 23:31:38,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 23:31:38,947 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2018-07-23 23:31:38,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:38,953 INFO L225 Difference]: With dead ends: 2512 [2018-07-23 23:31:38,953 INFO L226 Difference]: Without dead ends: 2187 [2018-07-23 23:31:38,955 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=200, Invalid=792, Unknown=0, NotChecked=0, Total=992 [2018-07-23 23:31:38,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2018-07-23 23:31:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2123. [2018-07-23 23:31:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2123 states. [2018-07-23 23:31:39,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2338 transitions. [2018-07-23 23:31:39,495 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2338 transitions. Word has length 100 [2018-07-23 23:31:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:39,496 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 2338 transitions. [2018-07-23 23:31:39,496 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 23:31:39,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2338 transitions. [2018-07-23 23:31:39,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 23:31:39,499 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:39,499 INFO L353 BasicCegarLoop]: trace histogram [12, 8, 8, 8, 7, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:39,499 INFO L414 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:39,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1135728227, now seen corresponding path program 9 times [2018-07-23 23:31:39,499 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:39,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:39,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:39,500 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:39,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2018-07-23 23:31:40,231 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:40,231 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:40,239 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 23:31:40,294 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-07-23 23:31:40,295 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:40,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:40,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-07-23 23:31:40,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 23:31:40,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 23:31:40,386 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:15 [2018-07-23 23:31:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2018-07-23 23:31:40,684 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:40,684 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 19 [2018-07-23 23:31:40,684 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 23:31:40,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 23:31:40,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:31:40,685 INFO L87 Difference]: Start difference. First operand 2123 states and 2338 transitions. Second operand 19 states. [2018-07-23 23:31:44,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:44,916 INFO L93 Difference]: Finished difference Result 6810 states and 7495 transitions. [2018-07-23 23:31:44,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 23:31:44,916 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 110 [2018-07-23 23:31:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:44,927 INFO L225 Difference]: With dead ends: 6810 [2018-07-23 23:31:44,927 INFO L226 Difference]: Without dead ends: 6584 [2018-07-23 23:31:44,930 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=262, Invalid=1460, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 23:31:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6584 states. [2018-07-23 23:31:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6584 to 2151. [2018-07-23 23:31:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2151 states. [2018-07-23 23:31:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 2370 transitions. [2018-07-23 23:31:45,601 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 2370 transitions. Word has length 110 [2018-07-23 23:31:45,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:45,601 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 2370 transitions. [2018-07-23 23:31:45,601 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 23:31:45,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 2370 transitions. [2018-07-23 23:31:45,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 23:31:45,605 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:45,605 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:45,605 INFO L414 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1414537100, now seen corresponding path program 10 times [2018-07-23 23:31:45,605 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:45,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:45,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:45,606 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:45,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-23 23:31:46,743 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:46,744 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:46,751 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-23 23:31:46,790 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-23 23:31:46,790 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:31:46,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:31:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 229 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-23 23:31:46,928 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:31:46,928 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 17 [2018-07-23 23:31:46,929 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 23:31:46,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 23:31:46,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-07-23 23:31:46,929 INFO L87 Difference]: Start difference. First operand 2151 states and 2370 transitions. Second operand 17 states. [2018-07-23 23:31:50,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:31:50,570 INFO L93 Difference]: Finished difference Result 3987 states and 4357 transitions. [2018-07-23 23:31:50,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 23:31:50,571 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 115 [2018-07-23 23:31:50,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:31:50,577 INFO L225 Difference]: With dead ends: 3987 [2018-07-23 23:31:50,578 INFO L226 Difference]: Without dead ends: 3983 [2018-07-23 23:31:50,580 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=276, Invalid=3146, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 23:31:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2018-07-23 23:31:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 2719. [2018-07-23 23:31:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2018-07-23 23:31:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 2997 transitions. [2018-07-23 23:31:51,326 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 2997 transitions. Word has length 115 [2018-07-23 23:31:51,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:31:51,327 INFO L471 AbstractCegarLoop]: Abstraction has 2719 states and 2997 transitions. [2018-07-23 23:31:51,327 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 23:31:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 2997 transitions. [2018-07-23 23:31:51,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 23:31:51,329 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:31:51,330 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:31:51,330 INFO L414 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:31:51,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1869312946, now seen corresponding path program 11 times [2018-07-23 23:31:51,330 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:31:51,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:31:51,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:51,331 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:31:51,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:31:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:31:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 49 proven. 148 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-23 23:31:52,033 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:31:52,033 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:31:52,049 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-07-23 23:32:01,886 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-07-23 23:32:01,886 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:32:01,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:32:02,031 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 49 proven. 155 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-23 23:32:02,053 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:32:02,053 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 19 [2018-07-23 23:32:02,054 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 23:32:02,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 23:32:02,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:32:02,054 INFO L87 Difference]: Start difference. First operand 2719 states and 2997 transitions. Second operand 19 states. [2018-07-23 23:32:04,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:32:04,228 INFO L93 Difference]: Finished difference Result 5124 states and 5636 transitions. [2018-07-23 23:32:04,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 23:32:04,228 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 115 [2018-07-23 23:32:04,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:32:04,237 INFO L225 Difference]: With dead ends: 5124 [2018-07-23 23:32:04,238 INFO L226 Difference]: Without dead ends: 4999 [2018-07-23 23:32:04,239 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 108 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2018-07-23 23:32:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4999 states. [2018-07-23 23:32:05,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4999 to 4247. [2018-07-23 23:32:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4247 states. [2018-07-23 23:32:05,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 4696 transitions. [2018-07-23 23:32:05,493 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 4696 transitions. Word has length 115 [2018-07-23 23:32:05,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:32:05,493 INFO L471 AbstractCegarLoop]: Abstraction has 4247 states and 4696 transitions. [2018-07-23 23:32:05,493 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 23:32:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 4696 transitions. [2018-07-23 23:32:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 23:32:05,498 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:32:05,498 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:32:05,498 INFO L414 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:32:05,498 INFO L82 PathProgramCache]: Analyzing trace with hash 371647666, now seen corresponding path program 12 times [2018-07-23 23:32:05,498 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:32:05,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:32:05,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:05,499 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:32:05,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:06,228 WARN L169 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 12 [2018-07-23 23:32:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 29 proven. 173 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-07-23 23:32:06,777 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:32:06,777 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:32:06,786 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-07-23 23:32:06,853 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2018-07-23 23:32:06,853 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:32:06,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:32:06,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-07-23 23:32:06,865 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 47 [2018-07-23 23:32:06,871 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,873 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2018-07-23 23:32:06,881 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,883 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,885 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 81 [2018-07-23 23:32:06,904 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,905 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,906 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,908 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 20 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 107 [2018-07-23 23:32:06,921 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,923 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,927 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,929 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,930 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 30 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 139 [2018-07-23 23:32:06,938 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,941 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,943 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,946 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,948 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,949 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 42 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 177 [2018-07-23 23:32:06,958 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,959 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,961 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,965 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,967 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,969 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,971 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:06,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 56 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 221 [2018-07-23 23:32:06,998 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,000 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,002 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,003 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,004 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,005 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,007 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,008 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 72 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 271 [2018-07-23 23:32:07,019 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,023 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,025 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,026 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,028 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,032 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,033 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,033 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,034 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 90 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 327 [2018-07-23 23:32:07,045 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,048 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,050 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,051 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,053 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,055 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,057 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,059 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,061 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,062 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:07,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 110 disjoint index pairs (out of 45 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 386 [2018-07-23 23:32:07,068 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,313 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,337 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,362 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,384 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,407 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,432 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,576 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,680 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,708 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:07,751 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 1 variables, input treesize:36, output treesize:56 [2018-07-23 23:32:09,547 WARN L169 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-07-23 23:32:10,226 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-07-23 23:32:10,244 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,245 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,247 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,248 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,250 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,251 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,252 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,253 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,254 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,256 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,258 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,260 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,261 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,262 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 23:32:10,264 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,266 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,267 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,269 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,270 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 23:32:10,272 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,273 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,274 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,276 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,278 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,279 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,280 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,282 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,283 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,285 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,286 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,287 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,289 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,291 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,292 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,294 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,295 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,297 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,298 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,299 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,300 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,302 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,304 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,305 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,306 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,308 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,309 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,311 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,312 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,314 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,315 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,317 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,318 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,319 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,321 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,323 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,324 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,325 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,328 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,329 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,331 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,333 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,335 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,337 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,338 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,342 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,343 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,344 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,345 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,347 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,348 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,349 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,351 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,352 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:32:10,353 INFO L303 Elim1Store]: Index analysis took 120 ms [2018-07-23 23:32:10,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 113 disjoint index pairs (out of 78 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 270 [2018-07-23 23:32:10,358 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 23:32:10,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-07-23 23:32:10,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 23:32:10,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:10,469 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:94, output treesize:5 [2018-07-23 23:32:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 16 proven. 188 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-23 23:32:10,709 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:32:10,709 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 33 [2018-07-23 23:32:10,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 23:32:10,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 23:32:10,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 23:32:10,710 INFO L87 Difference]: Start difference. First operand 4247 states and 4696 transitions. Second operand 33 states. [2018-07-23 23:32:14,998 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-07-23 23:32:16,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:32:16,784 INFO L93 Difference]: Finished difference Result 6513 states and 7173 transitions. [2018-07-23 23:32:16,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 23:32:16,785 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 115 [2018-07-23 23:32:16,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:32:16,796 INFO L225 Difference]: With dead ends: 6513 [2018-07-23 23:32:16,796 INFO L226 Difference]: Without dead ends: 6392 [2018-07-23 23:32:16,798 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 100 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=368, Invalid=2602, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 23:32:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6392 states. [2018-07-23 23:32:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6392 to 5571. [2018-07-23 23:32:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5571 states. [2018-07-23 23:32:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 6182 transitions. [2018-07-23 23:32:18,656 INFO L78 Accepts]: Start accepts. Automaton has 5571 states and 6182 transitions. Word has length 115 [2018-07-23 23:32:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:32:18,656 INFO L471 AbstractCegarLoop]: Abstraction has 5571 states and 6182 transitions. [2018-07-23 23:32:18,656 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 23:32:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5571 states and 6182 transitions. [2018-07-23 23:32:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 23:32:18,662 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:32:18,662 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:32:18,662 INFO L414 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:32:18,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1373862350, now seen corresponding path program 13 times [2018-07-23 23:32:18,662 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:32:18,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:32:18,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:18,663 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:32:18,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:19,464 WARN L169 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2018-07-23 23:32:19,844 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2018-07-23 23:32:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 49 proven. 148 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-23 23:32:20,026 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:32:20,026 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:32:20,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:32:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:20,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:32:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 49 proven. 182 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-07-23 23:32:20,235 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:32:20,235 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 19 [2018-07-23 23:32:20,235 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 23:32:20,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 23:32:20,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:32:20,236 INFO L87 Difference]: Start difference. First operand 5571 states and 6182 transitions. Second operand 19 states. [2018-07-23 23:32:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:32:23,136 INFO L93 Difference]: Finished difference Result 6474 states and 7116 transitions. [2018-07-23 23:32:23,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 23:32:23,137 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 115 [2018-07-23 23:32:23,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:32:23,142 INFO L225 Difference]: With dead ends: 6474 [2018-07-23 23:32:23,142 INFO L226 Difference]: Without dead ends: 6372 [2018-07-23 23:32:23,144 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 107 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:32:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6372 states. [2018-07-23 23:32:25,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6372 to 5998. [2018-07-23 23:32:25,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5998 states. [2018-07-23 23:32:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5998 states to 5998 states and 6605 transitions. [2018-07-23 23:32:25,200 INFO L78 Accepts]: Start accepts. Automaton has 5998 states and 6605 transitions. Word has length 115 [2018-07-23 23:32:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:32:25,201 INFO L471 AbstractCegarLoop]: Abstraction has 5998 states and 6605 transitions. [2018-07-23 23:32:25,201 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 23:32:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5998 states and 6605 transitions. [2018-07-23 23:32:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 23:32:25,209 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:32:25,209 INFO L353 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:32:25,209 INFO L414 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:32:25,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1991952590, now seen corresponding path program 14 times [2018-07-23 23:32:25,210 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:32:25,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:32:25,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:25,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:32:25,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:25,954 WARN L169 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 12 [2018-07-23 23:32:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 29 proven. 173 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-07-23 23:32:26,578 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:32:26,578 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:32:26,588 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:32:26,627 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:32:26,627 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:32:26,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:32:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 29 proven. 214 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-07-23 23:32:26,879 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:32:26,879 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 24 [2018-07-23 23:32:26,879 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 23:32:26,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 23:32:26,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2018-07-23 23:32:26,880 INFO L87 Difference]: Start difference. First operand 5998 states and 6605 transitions. Second operand 24 states. [2018-07-23 23:32:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:32:30,286 INFO L93 Difference]: Finished difference Result 6466 states and 7099 transitions. [2018-07-23 23:32:30,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 23:32:30,286 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 115 [2018-07-23 23:32:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:32:30,291 INFO L225 Difference]: With dead ends: 6466 [2018-07-23 23:32:30,291 INFO L226 Difference]: Without dead ends: 6380 [2018-07-23 23:32:30,292 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 105 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2018-07-23 23:32:30,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6380 states. [2018-07-23 23:32:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6380 to 5868. [2018-07-23 23:32:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5868 states. [2018-07-23 23:32:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5868 states to 5868 states and 6471 transitions. [2018-07-23 23:32:32,304 INFO L78 Accepts]: Start accepts. Automaton has 5868 states and 6471 transitions. Word has length 115 [2018-07-23 23:32:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:32:32,305 INFO L471 AbstractCegarLoop]: Abstraction has 5868 states and 6471 transitions. [2018-07-23 23:32:32,305 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 23:32:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5868 states and 6471 transitions. [2018-07-23 23:32:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 23:32:32,313 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:32:32,314 INFO L353 BasicCegarLoop]: trace histogram [12, 9, 8, 8, 8, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:32:32,314 INFO L414 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:32:32,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1598519173, now seen corresponding path program 15 times [2018-07-23 23:32:32,314 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:32:32,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:32:32,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:32,315 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:32:32,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-23 23:32:32,650 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:32:32,650 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:32:32,658 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 23:32:32,817 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2018-07-23 23:32:32,817 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:32:32,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:32:32,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-07-23 23:32:32,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 23:32:32,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:32:32,937 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2018-07-23 23:32:33,322 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-07-23 23:32:33,343 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:32:33,344 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2018-07-23 23:32:33,344 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 23:32:33,344 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 23:32:33,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2018-07-23 23:32:33,345 INFO L87 Difference]: Start difference. First operand 5868 states and 6471 transitions. Second operand 30 states. [2018-07-23 23:32:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:32:36,537 INFO L93 Difference]: Finished difference Result 8554 states and 9354 transitions. [2018-07-23 23:32:36,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 23:32:36,538 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 125 [2018-07-23 23:32:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:32:36,540 INFO L225 Difference]: With dead ends: 8554 [2018-07-23 23:32:36,540 INFO L226 Difference]: Without dead ends: 1932 [2018-07-23 23:32:36,548 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=174, Invalid=1806, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 23:32:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2018-07-23 23:32:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1922. [2018-07-23 23:32:37,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1922 states. [2018-07-23 23:32:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2004 transitions. [2018-07-23 23:32:37,703 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2004 transitions. Word has length 125 [2018-07-23 23:32:37,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:32:37,703 INFO L471 AbstractCegarLoop]: Abstraction has 1922 states and 2004 transitions. [2018-07-23 23:32:37,703 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 23:32:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2004 transitions. [2018-07-23 23:32:37,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 23:32:37,705 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:32:37,705 INFO L353 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:32:37,705 INFO L414 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:32:37,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1856658333, now seen corresponding path program 16 times [2018-07-23 23:32:37,706 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:32:37,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:32:37,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:37,706 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:32:37,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:38,401 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 374 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-07-23 23:32:38,401 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:32:38,401 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:32:38,409 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-23 23:32:38,456 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-23 23:32:38,456 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:32:38,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:32:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-23 23:32:38,687 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:32:38,687 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 21 [2018-07-23 23:32:38,687 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 23:32:38,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 23:32:38,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2018-07-23 23:32:38,688 INFO L87 Difference]: Start difference. First operand 1922 states and 2004 transitions. Second operand 21 states. [2018-07-23 23:32:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:32:43,403 INFO L93 Difference]: Finished difference Result 2447 states and 2524 transitions. [2018-07-23 23:32:43,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 23:32:43,404 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2018-07-23 23:32:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:32:43,406 INFO L225 Difference]: With dead ends: 2447 [2018-07-23 23:32:43,408 INFO L226 Difference]: Without dead ends: 2433 [2018-07-23 23:32:43,411 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1918 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=367, Invalid=5795, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 23:32:43,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2018-07-23 23:32:44,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 1815. [2018-07-23 23:32:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-07-23 23:32:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 1895 transitions. [2018-07-23 23:32:44,186 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 1895 transitions. Word has length 143 [2018-07-23 23:32:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:32:44,187 INFO L471 AbstractCegarLoop]: Abstraction has 1815 states and 1895 transitions. [2018-07-23 23:32:44,187 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 23:32:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 1895 transitions. [2018-07-23 23:32:44,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 23:32:44,189 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:32:44,189 INFO L353 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:32:44,189 INFO L414 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:32:44,189 INFO L82 PathProgramCache]: Analyzing trace with hash 845541083, now seen corresponding path program 17 times [2018-07-23 23:32:44,190 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:32:44,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:32:44,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:44,191 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:32:44,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:32:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:32:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 70 proven. 305 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-23 23:32:44,990 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:32:44,990 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:32:45,001 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-07-23 23:33:09,357 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2018-07-23 23:33:09,358 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:33:09,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:33:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 70 proven. 330 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-07-23 23:33:10,235 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:33:10,236 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22] total 33 [2018-07-23 23:33:10,236 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 23:33:10,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 23:33:10,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 23:33:10,237 INFO L87 Difference]: Start difference. First operand 1815 states and 1895 transitions. Second operand 33 states. [2018-07-23 23:33:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:33:13,028 INFO L93 Difference]: Finished difference Result 2969 states and 3047 transitions. [2018-07-23 23:33:13,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 23:33:13,029 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 143 [2018-07-23 23:33:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:33:13,031 INFO L225 Difference]: With dead ends: 2969 [2018-07-23 23:33:13,031 INFO L226 Difference]: Without dead ends: 2117 [2018-07-23 23:33:13,033 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 121 SyntacticMatches, 9 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=176, Invalid=1306, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 23:33:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2018-07-23 23:33:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1707. [2018-07-23 23:33:13,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2018-07-23 23:33:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1760 transitions. [2018-07-23 23:33:13,743 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1760 transitions. Word has length 143 [2018-07-23 23:33:13,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:33:13,744 INFO L471 AbstractCegarLoop]: Abstraction has 1707 states and 1760 transitions. [2018-07-23 23:33:13,744 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 23:33:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1760 transitions. [2018-07-23 23:33:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 23:33:13,746 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:33:13,746 INFO L353 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:33:13,746 INFO L414 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:33:13,746 INFO L82 PathProgramCache]: Analyzing trace with hash 2039094747, now seen corresponding path program 18 times [2018-07-23 23:33:13,746 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:33:13,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:33:13,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:33:13,747 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:33:13,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:33:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:33:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 40 proven. 340 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-07-23 23:33:14,778 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:33:14,779 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:33:14,793 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-07-23 23:33:14,939 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-07-23 23:33:14,939 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:33:14,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:33:14,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-07-23 23:33:14,965 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 47 [2018-07-23 23:33:14,972 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,974 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 61 [2018-07-23 23:33:14,980 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,981 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,983 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 81 [2018-07-23 23:33:14,988 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,990 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,991 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,993 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:14,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 20 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 107 [2018-07-23 23:33:15,019 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,020 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,021 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,022 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,024 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 30 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 139 [2018-07-23 23:33:15,047 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,048 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,049 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,050 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,051 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,053 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 42 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 177 [2018-07-23 23:33:15,060 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,062 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,063 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,065 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,066 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,068 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,069 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,072 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 56 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 221 [2018-07-23 23:33:15,078 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,080 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,081 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,083 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,084 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,086 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,087 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,089 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 72 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 271 [2018-07-23 23:33:15,125 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,129 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,131 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,133 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,135 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,137 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,139 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,141 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,142 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 90 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 327 [2018-07-23 23:33:15,165 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,167 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,168 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,170 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,172 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,176 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,178 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,179 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,180 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,181 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:15,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 110 disjoint index pairs (out of 45 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 386 [2018-07-23 23:33:15,185 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,378 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,403 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,428 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,450 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,474 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,497 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,522 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,543 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,568 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,593 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,617 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,617 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 1 variables, input treesize:36, output treesize:56 [2018-07-23 23:33:15,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-07-23 23:33:15,669 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:15,697 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:56 [2018-07-23 23:33:16,811 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,812 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,813 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,814 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,816 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,817 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,819 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,821 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,822 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,824 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,825 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,827 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,829 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,830 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,832 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,833 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,835 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,836 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 23:33:16,838 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,839 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 23:33:16,840 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,841 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,843 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,844 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,846 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,847 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,848 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,849 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,851 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,852 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,854 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,855 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,856 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,857 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,859 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,860 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,862 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,863 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,864 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,865 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,867 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,868 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,869 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,871 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,872 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,873 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,875 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,876 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,877 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,879 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,880 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,881 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,883 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,884 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,885 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,887 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,888 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,889 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,890 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,892 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,893 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,894 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,896 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,897 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,898 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,900 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,901 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,902 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,904 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,905 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,910 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,911 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,912 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,914 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 23:33:16,914 INFO L303 Elim1Store]: Index analysis took 105 ms [2018-07-23 23:33:16,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 111 disjoint index pairs (out of 78 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 258 [2018-07-23 23:33:16,918 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 23:33:17,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-07-23 23:33:17,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 23:33:17,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 23:33:17,058 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:94, output treesize:5 [2018-07-23 23:33:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 13 proven. 363 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-07-23 23:33:17,372 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:33:17,372 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2018-07-23 23:33:17,373 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 23:33:17,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 23:33:17,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=980, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 23:33:17,374 INFO L87 Difference]: Start difference. First operand 1707 states and 1760 transitions. Second operand 34 states. [2018-07-23 23:33:21,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:33:21,729 INFO L93 Difference]: Finished difference Result 1731 states and 1782 transitions. [2018-07-23 23:33:21,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 23:33:21,730 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 143 [2018-07-23 23:33:21,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:33:21,731 INFO L225 Difference]: With dead ends: 1731 [2018-07-23 23:33:21,731 INFO L226 Difference]: Without dead ends: 1172 [2018-07-23 23:33:21,733 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=371, Invalid=2821, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 23:33:21,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2018-07-23 23:33:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1162. [2018-07-23 23:33:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1162 states. [2018-07-23 23:33:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1188 transitions. [2018-07-23 23:33:22,259 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1188 transitions. Word has length 143 [2018-07-23 23:33:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:33:22,260 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1188 transitions. [2018-07-23 23:33:22,260 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 23:33:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1188 transitions. [2018-07-23 23:33:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 23:33:22,261 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:33:22,261 INFO L353 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:33:22,261 INFO L414 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:33:22,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1364032159, now seen corresponding path program 19 times [2018-07-23 23:33:22,262 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:33:22,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:33:22,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:33:22,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:33:22,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:33:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:33:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 70 proven. 305 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-23 23:33:22,750 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:33:22,750 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:33:22,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:33:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:33:22,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:33:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 70 proven. 355 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-23 23:33:23,104 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:33:23,105 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 19 [2018-07-23 23:33:23,105 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 23:33:23,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 23:33:23,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:33:23,107 INFO L87 Difference]: Start difference. First operand 1162 states and 1188 transitions. Second operand 19 states. [2018-07-23 23:33:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:33:24,205 INFO L93 Difference]: Finished difference Result 1172 states and 1197 transitions. [2018-07-23 23:33:24,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 23:33:24,206 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 143 [2018-07-23 23:33:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:33:24,207 INFO L225 Difference]: With dead ends: 1172 [2018-07-23 23:33:24,208 INFO L226 Difference]: Without dead ends: 1158 [2018-07-23 23:33:24,208 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 135 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-07-23 23:33:24,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2018-07-23 23:33:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2018-07-23 23:33:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2018-07-23 23:33:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1183 transitions. [2018-07-23 23:33:24,732 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1183 transitions. Word has length 143 [2018-07-23 23:33:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:33:24,733 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1183 transitions. [2018-07-23 23:33:24,733 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 23:33:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1183 transitions. [2018-07-23 23:33:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 23:33:24,734 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:33:24,734 INFO L353 BasicCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:33:24,734 INFO L414 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:33:24,735 INFO L82 PathProgramCache]: Analyzing trace with hash 745941919, now seen corresponding path program 20 times [2018-07-23 23:33:24,735 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:33:24,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:33:24,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:33:24,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:33:24,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:33:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:33:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 40 proven. 340 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-07-23 23:33:25,686 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:33:25,686 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:33:25,694 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:33:25,740 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:33:25,740 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:33:25,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:33:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 40 proven. 397 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-07-23 23:33:27,223 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:33:27,223 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 26 [2018-07-23 23:33:27,223 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 23:33:27,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 23:33:27,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2018-07-23 23:33:27,224 INFO L87 Difference]: Start difference. First operand 1158 states and 1183 transitions. Second operand 26 states. [2018-07-23 23:33:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:33:28,544 INFO L93 Difference]: Finished difference Result 1158 states and 1183 transitions. [2018-07-23 23:33:28,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 23:33:28,544 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 143 [2018-07-23 23:33:28,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:33:28,545 INFO L225 Difference]: With dead ends: 1158 [2018-07-23 23:33:28,545 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 23:33:28,546 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 132 SyntacticMatches, 9 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2018-07-23 23:33:28,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 23:33:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 23:33:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 23:33:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 23:33:28,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2018-07-23 23:33:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:33:28,548 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 23:33:28,548 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 23:33:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 23:33:28,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 23:33:28,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 23:33:28,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:28,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:28,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:28,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:28,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:29,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:30,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:30,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:31,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:32,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,132 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:33,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:34,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:35,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:37,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:38,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:39,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:40,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:41,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:42,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:43,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:44,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:45,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:46,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:46,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:46,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:47,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:49,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:51,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:52,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:53,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:54,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,132 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:57,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:59,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:59,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:33:59,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:00,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:01,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:02,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:04,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:04,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:04,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:06,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:06,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:06,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:06,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:06,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:06,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:07,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:08,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:08,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:10,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:11,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:11,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:12,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:12,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:13,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:13,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:14,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:14,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:17,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:18,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:19,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:19,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:20,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:21,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,403 WARN L169 SmtUtils]: Spent 57.80 s on a formula simplification. DAG size of input: 4902 DAG size of output: 3914 [2018-07-23 23:34:26,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:26,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,538 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,611 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:27,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:28,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:29,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:32,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:32,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:32,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:32,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:32,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:32,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:33,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:33,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:33,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:33,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:35,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:35,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:34:35,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-07-23 23:34:42,168 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-23 23:34:42,169 INFO L168 Benchmark]: Toolchain (without parser) took 241732.06 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -313.3 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-23 23:34:42,170 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:34:42,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 23:34:42,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:34:42,171 INFO L168 Benchmark]: Boogie Preprocessor took 50.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:34:42,171 INFO L168 Benchmark]: RCFGBuilder took 609.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -770.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-07-23 23:34:42,172 INFO L168 Benchmark]: TraceAbstraction took 240648.81 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 446.4 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-07-23 23:34:42,175 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 609.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -770.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240648.81 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 446.4 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1963. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/vogal_true-unreach-call.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-34-42-186.csv Completed graceful shutdown